Answer:
its either 3 or -3 hopefully someone in the comments can tell which
Step-by-step explanation:
X is around 8.66666666, so you could possibly but that in fraction form like 8.666666/1 (8.6 repeating) and put it over one. I hope this helps!
Answer:
$105
Step-by-step explanation:
$15 for one case of snicker bars. Since it's $30 for 2. He needs 140 so 140 divided by 20(which is in one case) = 7. So he needs 7 cases to have 140 snicker bars. Well, if each case itself is $15 and we need 7 cases. 7 times 15= 105. It's going to cost him $105 to fill that vending machine.
-x + y = 4
2x + y = 1
-3x = 3
-3 -3
x = -1
2x + y = 1
2(-1) + y = 1
-2 + y = 1
+ 2 + 2
y = 3
(x, y) = (-1,3)
